Culture
Chemists usually synthesize molecules using stochastic bond-forming collisions of the reactant molecules in solution. Nature follows a different strategy in biochemical synthesis. The majority of biochemical reactions are driven by machine-type protein complexes that bind and position the reactive molecules for selective transformations. Artificial "molecular assemblers" performing "mechanosynthesis" have been proposed as a new paradigm in chemistry and nanofabrication.
Existing gender categories in sport should perhaps be abandoned in favour of a more "nuanced" approach in the new transgender era, University of Otago researchers say.
The International Olympic Committee (IOC) guidelines that allow male-to-female transgender athletes to compete in the women's category at the elite level has raised significant debate since being introduced in 2015. A recent case of New Zealand weightlifter Laurel Hubbard, a transwomen competing in the 2018 Commonwealth Games, has polarised opinions about the inclusion of transwomen in women's sport.
A UCLA-led research team has found that giving mice antibiotics for 10 days prior to a liver transplant leads to better liver function after the surgery.
The higher prevalence of suicide among Indigenous peoples in Canada has been extensively documented, but little research has focused on factors associated with recovery among those who have had suicidal thoughts. A new nationally representative Canadian study from the University of Toronto and Algoma University found that three-quarters of formerly suicidal Indigenous adults who are living off-reserve had been free from suicidal thoughts in the past year.
In every modern microcircuit hidden inside a laptop or smartphone, you can see transistors - small semiconductor devices that control the flow of electric current, i.e. the flow of electrons. If we replace electrons with photons (elementary particles of light), then scientists will have the prospect of creating new computing systems that can process massive information flows at a speed close to the speed of light. At present, it is photons that are considered the best for transmitting information in quantum computers.
Researchers from University of Texas A&M and University of Texas at Austin published a new paper in the Journal of Marketing that examines how incumbent domestic companies can use marketing tools to counter the threat of foreign entrants after the domestic market is liberalized.
The study, forthcoming in the September issue of the Journal of Marketing and titled "Effects of Liberalization on Incumbent Companies' Marketing Mix Responses and Performance: Evidence from a Quasi-Experiment," is authored by Nandini Ramani and Raji Srinivasan.
BOSTON - An analysis of three previous studies of children and young adults with attention-deficit hyperactivity disorder (ADHD) quantifies for the first time the extent to which stimulant treatment reduces the development of mood disorders, school problems, conduct disorders, substance use disorders and other problems. The study led by Massachusetts General Hospital investigators is being published online in the Journal of Adolescent Health.
DALLAS, July 23, 2019 - Patients appear to be at higher risk of heart problems or stroke when prescriptions for the newest cholesterol-lowering drugs are rejected by insurance companies or unfilled by patients, according to new research in Circulation: Cardiovascular Quality and Outcomes, an American Heart Association journal.
Before life began on Earth, the environment likely contained a massive number of chemicals that reacted with each other more or less randomly, and it is unclear how things as complex as cells could have emerged from such chemical chaos. Now, a team led by Tony Z.
BINGHAMTON, N.Y. -- Facebook can help first-semester college students maintain relationships with high school friends and assist them in creating new friendships, according to new research from Binghamton University, State University of New York. When it comes to making new friends, those with higher confidence in their social skills have less to gain from relying on Facebook, while people with lower confidence in their social skills have more to gain from a reliance on the social media platform.
AUGUSTA, Ga. (July 23, 2019) - When someone is depressed and having suicidal thoughts or their depression treatment just isn't working, their caregivers might want to check to see if they have obstructive sleep apnea, investigators say.
That's true even when these individuals don't seem to fit the usual profile of obstructive sleep apnea, which includes males who are overweight, snore and complain of daytime sleepiness, says Dr. W. Vaughn McCall, chair of the Department of Psychiatry and Health Behavior at the Medical College of Georgia at Augusta University.
As political leaders debate the merits of a future Medicare for All system in the U.S., some analysts predict that implementing universal coverage could cause a sharp, unaffordable increase in hospital use and costs, overwhelming the system. But new research by a team at Harvard Medical School and The City University of New York at Hunter College, published today in the Annals of Internal Medicine, contradicts that assumption, finding that past insurance expansions did not result in a net increase in hospital use.
Berkeley -- Before bite-sized crustaceans like crayfish, shrimp and prawns land on our dinner plates, they first have to get fat themselves -- and it turns out they relish the freshwater snails that transmit the parasite that causes schistosomiasis, the second most devastating parasitic disease worldwide, after malaria.
CHAPEL HILL, North Carolina - Researchers at the UNC Lineberger Comprehensive Cancer Center have discovered a hyperactive cell signal that contributes to tumor growth in an aggressive blood cancer. They also developed an experimental therapeutic to block the signal and slow tumor growth.
Many people complain about television shows that use recorded laugh tracks. But researchers reporting in the journal Current Biology on July 22 have found that laugh tracks really do work.
According to the new evidence, the sound of a laugh track makes people rate corny "dad jokes" as being funnier. Laugh tracks work best when the recording features spontaneous laughter as opposed to posed laughter. The findings held up in both neurotypical people and in those diagnosed with autism.